Geodesic
Conditions for the Separability of Objects in Two-Dimensional Velocity Fields
Canadian mathematical bulletin, Tome 35 (1992) no. 4, pp. 484-491

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DOI

We consider the directed graph representing the obstruction relation between objects moving along the streamlines of a two-dimensional velocity field. A collection of objects is sequentially separable if and only if the corresponding graph has no directed cycles. A sufficient condition for this is the permeability of closed Jordan curves.
DOI : 10.4153/CMB-1992-063-1
Mots-clés : 05C20, 06A10, 68R10 
Conditions for the Separability of Objects in Two-Dimensional Velocity Fields. Canadian mathematical bulletin, Tome 35 (1992) no. 4, pp. 484-491. doi: 10.4153/CMB-1992-063-1
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     journal = {Canadian mathematical bulletin},
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     year = {1992},
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     doi = {10.4153/CMB-1992-063-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-063-1/}
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